Any fake tanning tips and best volumising hair products?

It's basically in the title, but I love tanning and big hair! My tan goes pretty well and dark, but too dark round the knees! I exfoliate and moisturise everyday and more so around the knees and elbows! But nothing seems to work! And also, which products would you recommend for big, no wait, MASSIVE hair? I normally back comb and use tresseme volume mousse but it's not great! Thanks